🔧 Expedition - Cabin Air Filter Replacement

Replacing the cabin air filter on your Expedition helps keep dust, pollen, and odors out of the HVAC system. The filter is located behind the glove box and can be changed with basic hand tools in just a few minutes.

Difficulty Level: Beginner | Estimated Time: 10-20 minutes

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⚠️ Safety & Precautions

• ⚠️ Park your Expedition on level ground and turn the ignition off before starting.
• ⚠️ Do not force the glove box down too far; plastic hinges and stops can crack.
• ⚠️ Keep small screws and clips in a cup or tray so they do not fall into the footwell.
• ⚠️ Battery disconnect is not required for this repair.

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🔧 Required Tools

You'll need the following tools for this repair:

• 7mm socket
• 1/4-inch ratchet
• Plastic trim removal tool
• Flashlight
• Nitrile gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Cabin air filter - Qty: 1

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📋 Before You Begin

• 🅿️ Place your Expedition in Park, set the parking brake, and turn the ignition off.
• 🧤 Empty the glove box so items do not spill when it is lowered.
• 💡 Use a flashlight to see the filter door behind the glove box.
• 📌 Note the airflow arrow on the old filter before removal. Airflow direction matters for proper filtering.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open and Empty the Glove Box

• Open the glove box fully and remove all items by hand.
• Use a flashlight to look along both sides of the glove box opening.
• Use a small tray for loose items.

Step 2: Release the Glove Box Stops

• The glove box stops are small plastic tabs that keep the glove box from dropping too far.
• Use your hands to gently press inward on both sides of the glove box bin.
• If needed, use a plastic trim removal tool to help release the side stops without scratching the plastic.
• Let the glove box lower slowly toward the floor.

Step 3: Remove the Lower Glove Box Fasteners if Needed

• Some Expedition glove box panels may have small screws securing the lower access area.
• If screws are present, use a 7mm socket and 1/4-inch ratchet to remove them.
• Set the screws aside in a safe place.
• There is no torque spec required for removal.

Step 4: Locate the Cabin Filter Access Door

• Look straight behind the lowered glove box using a flashlight.
• Find the rectangular cabin filter access door on the HVAC housing.
• The HVAC housing is the black plastic air box that routes air for heating and air conditioning.

Step 5: Open the Filter Access Door

• Use your fingers to press the locking tab on the filter access door.
• If the tab is tight, gently help it with a plastic trim removal tool.
• Pull the access door off and set it aside.
• Do not pry hard on plastic tabs.

Step 6: Remove the Old Cabin Air Filter

• Before pulling the filter out, look for the airflow arrow printed on the side of the old filter.
• Use your hand to slide the old cabin air filter straight out.
• Keep the filter level so leaves and dust do not spill into the blower area.
• Wear nitrile gloves and safety glasses if the old filter is dusty.

Step 7: Install the New Cabin Air Filter

• Compare the new cabin air filter to the old one to make sure the shape and size match.
• Install the new filter with the airflow arrow facing the same direction as the old filter.
• Slide the filter fully into the housing by hand.
• Do not crush or fold the filter edges.
• Airflow arrow direction is important.

Step 8: Reinstall the Filter Access Door

• Line up the access door with the HVAC housing.
• Push it into place by hand until the locking tab clicks.
• Use a flashlight to confirm the door is seated evenly.

Step 9: Raise and Secure the Glove Box

• Lift the glove box back into position by hand.
• Press the sides inward slightly so the stops clear the dash opening.
• If you removed screws, reinstall them using a 7mm socket and 1/4-inch ratchet.
• Tighten the screws snug only. Torque to 2 Nm (18 in-lbs).
• Snug is enough for plastic trim.

Step 10: Test the HVAC System

• Start your Expedition.
• Turn the blower fan on using the climate controls.
• Check low, medium, and high fan speeds.
• Listen for rattles or a fluttering sound, which may mean the filter or door is not seated correctly.

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✅ After Repair

• ✅ Confirm air flows normally from the vents.
• ✅ Make sure the glove box opens and closes smoothly.
• ✅ If there is a musty smell, run the fan on fresh-air mode for a few minutes.
• ✅ Replace the cabin air filter about every 15,000-20,000 miles, or sooner in dusty conditions.

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💰 DIY vs Shop Cost

Shop Cost: $80-$150 (parts + labor)

DIY Cost: $20-$45 (parts only)

You Save: $60-$105 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.3-0.5 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.